Thaser rhymes with:
appraiser, blaiser, blaser, blazer, fraser, frazer, gaiser, glaeser, glaser, glazer, graeser, graser, grazer, heyser, kaeser, kaser, kayser, laser, lazar, lazer, maser, mazer, naser, nazer, peyser, qasr, raiser, raisor, raser, rasor, razor, rukeyser, taser
Thaser sounds like:
tacker, tager, takara, takecare, taker, taser, tashiro, tasker, taucher, tauscher, taxer, teacher, teaser, teicher, teixeira, tejera, tesar, tesoriero, tesoro, tessier, teuscher, texeira, thacher, thacker, thackeray, thakkar, thatcher, thicker, thuggery, ticer, ticker, ticor, tigar, tiger, tigera, tischer, tisher, titzer, tokar, tooker, toothaker, toshiharu, tougher, tozer, tozier, tsar, tucker, tweezer, tygar, tyger